There is a lot of unwarranted Butch blaming going around, but there is one thing I think we can hold him directly responsible for: DT depth.
He knew after last season that we only had 4 capable DTs returning in Vickers, DOB, KMac and Tuttle (Picou is clearly not SEC caliber) and that 2 of them had serious issues (DOB - substance abuse, Tuttle - injury). But he only recruited one DT in last year's class, JUCO Alexis Johnson.
Then, AJ gets suspended indefinitely the second he's on campus and Butch did nothing to try and supplement the roster over the summer with DT depth (even though he took a late DE in McDaniel and RB in Lewis).
Now, not unpredictably, DOB gets in trouble again and we have a couple injuries and we have nothing but Swiss cheese left at the most important position on D in the SEC.
That's on Butch. You can't go into the spring with only 5 capable DTs in year 4, and you absolutely cannot go into the Fall with only 4 capable DTs in year 4.